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TPA2000D4DAP Datasheet

  • TPA2000D4DAP

  • STEREO 2-W CLASS-D AUDIO POWER AMPLIFIER WITH STEREO HP AMPL...

  • 409.65KB

  • 24頁

  • TI

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TPA2000D4
STEREO 2-W CLASS-D AUDIO POWER AMPLIFIER
WITH STEREO HP AMPLIFIER
SLOS337A 鈥?DECEMBER 2000 鈥?REVISED MAY 2003
D
Ideal for Notebook PCs and USB-Powered
D
D
D
D
D
D
D
D
Speakers
2 W Into 4
鈩?/div>
From 5-V Supply
Integrated Class-AB Headphone Amplifier
Second-Generation Modulation Technique
鈥?Filterless Operation
鈥?Improved Efficiency
Low Supply Current . . . 9 mA typ at 5 V
Shutdown Control . . . < 0.05
碌A
Typ
Shutdown Pin Is TTL Compatible
鈥?0擄C to 85擄C Operating Temperature
Range
Space-Saving, Thermally-Enhanced
PowerPAD錚?Packaging
LINN
LINP
HPLIN
GAIN0
GAIN1
PVDDL
LOUTP
PGNDL
PGNDL
LOUTN
PVDDL
HPLGAIN
HPLOUT
MODE
HPRGAIN
HPROUT
DAP PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
description
RINN
RINP
HPRIN
BYPASS
SHUTDOWN
PVDDR
ROUTP
PGNDR
PGNDR
ROUTN
PVDDR
NC
VDD
COSC
ROSC
AGND
NC 鈥?No internal connection
The TPA2000D4 is a 2-W stereo bridge-tied-load
(BTL) class-D amplifier designed to drive
speakers with as low as 4-鈩?impedance. The amplifier uses TI鈥檚 second-generation modulation technique,
which results in improved efficiency and SNR, and also allows the device to be connected directly to the speaker
without the use of the LC output filter commonly associated with class-D amplifiers (this will result in an EMI
which must be shielded at the system level). These features make the device ideal for use in notebook PCs
where high-efficiency is needed to extend battery run-time. For speakers powered off the USB bus, the
high-efficiency allows for higher output power levels without tripping the USB鈥檚 overcurrent circuitry.
The gain of the amplifier is controlled by two input terminals, GAIN1, and GAIN0. This allows the amplifier to
be configured for a gain of 6, 12, 18, and 23.5 dB. The differential input terminals are high-impedance CMOS
inputs, and can be used as summing nodes.
The headphone amplifier is a stereo single-ended (SE) class-AB amplifier which requires two external resistors
per channel to set the gain. The MODE pin selects which amplifier is active; the unused amplifier is placed in
shutdown to reduce supply current.
Both the class-D BTL amplifier, and the class-AB SE amplifier include depop circuitry to reduce the amount of
turnon pop at power up, when cycling SHUTDOWN, and when switching modes of operation.
The TPA2000D4 is available in the 32-pin thermally-enhanced TSSOP package (DAP) which allows stereo 2-W
continuous output power levels in 4-鈩?loads when placed on a board with proper thermal board design. The
TPA2000D4 operates over an ambient temperature range of 鈥?0擄C to 85擄C.
These packages deliver levels of thermal performance that were previously only achievable in TO-220-type
packages. Thermal impedances of less than 35擄C/W are readily realized in multilayer PCB applications when
using the DAP package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
錚?/div>
2000鈥?003, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

TPA2000D4DAP 產(chǎn)品屬性

  • 46

  • 集成電路 (IC)

  • 線性 - 音頻放大器

  • -

  • D 類

  • 2-通道（立體聲）帶立體聲耳機

  • 2W x 2 @ 4 歐姆; 90mW x 2 @ 32 歐姆

  • 3.7 V ~ 5.5 V

  • 消除爆音，差分輸入，關閉

  • 表面貼裝

  • 32-HTSSOP

  • 32-TSSOP（0.240"，6.10mm 寬）裸露焊盤

  • 管件

  • 296-10831-ND - EVAL MOD FOR TPA2000D4

  • 296-10830-5

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